EP 0381629 A1 19900808 - An extensible movable bridge assembly for use in building tunnels.
Title (en)
An extensible movable bridge assembly for use in building tunnels.
Title (de)
Ausfahrbarer und beweglicher Brückenzusammenbau zum Bauen von Tunneln.
Title (fr)
Assemblage de pont extensible et mobile pour construire des tunnels.
Publication
Application
Priority
IT 1926989 A 19890131
Abstract (en)
An extensible bridge assembly is disclosed for performing, in a tunnel being built, tunnel building operations such as the loading of mines, affixing of reinforcing ribs, laying of nets and the like. This extensible bridge assembly essentially comprises a bridge frame (1), affixed to a truck, on the chassis (3) of which there are articulated two raising arms (12, 17), bearing a counter-platform (18) which, in turn, supports a platform (21) provided with legs (30). These component parts, in particular, comprise piston oleodinamic systems (14, 23, 30) to drive the component parts in an independent way from one another. The truck is substantially used both as a stabilizing ballast, for stabilizing a bridge assembly being extended, and as a transport means, to be used as the bridge assembly is closed and the stabilizer elements (5) raised.
IPC 1-7
IPC 8 full level
B66F 11/04 (2006.01); E21D 11/40 (2006.01)
CPC (source: EP)
B66F 11/044 (2013.01)
Citation (search report)
- [X] FR 2266656 A1 19751031 - GACQUERELLE GERARD [FR]
- [A] US 3529694 A 19700922 - ATCHEY GEORGE L
- [A] GB 933693 A 19630808 - WHARTON ENGS ELSTREE LTD
- [A] FR 2320898 A1 19770311 - BEUKENBERG MASCHF [DE]
- [A] DE 1481911 A1 19691023 - EISENBAU KARL LADWIG
- [A] US 3253717 A 19660531 - ALEXANDER KRYNYTZKY
Designated contracting state (EPC)
AT CH DE ES FR GB GR LI SE
DOCDB simple family (publication)
EP 0381629 A1 19900808; EP 0381629 B1 19940105; AT E99642 T1 19940115; DE 69005657 D1 19940217; DE 69005657 T2 19940707; IT 1228084 B 19910528; IT 8919269 A0 19890131
DOCDB simple family (application)
EP 90830001 A 19900102; AT 90830001 T 19900102; DE 69005657 T 19900102; IT 1926989 A 19890131